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<h2><a href="local_closure_goog_dom_textrangeiterator_test.js.html">textrangeiterator_test.js</a></h2>

<pre class="prettyprint lang-js">
<a name="line1"></a>// Copyright 2008 The Closure Library Authors. All Rights Reserved.
<a name="line2"></a>//
<a name="line3"></a>// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);
<a name="line4"></a>// you may not use this file except in compliance with the License.
<a name="line5"></a>// You may obtain a copy of the License at
<a name="line6"></a>//
<a name="line7"></a>//      http://www.apache.org/licenses/LICENSE-2.0
<a name="line8"></a>//
<a name="line9"></a>// Unless required by applicable law or agreed to in writing, software
<a name="line10"></a>// distributed under the License is distributed on an &quot;AS-IS&quot; BASIS,
<a name="line11"></a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a name="line12"></a>// See the License for the specific language governing permissions and
<a name="line13"></a>// limitations under the License.
<a name="line14"></a>
<a name="line15"></a>goog.provide(&#39;goog.dom.TextRangeIteratorTest&#39;);
<a name="line16"></a>goog.setTestOnly(&#39;goog.dom.TextRangeIteratorTest&#39;);
<a name="line17"></a>
<a name="line18"></a>goog.require(&#39;goog.dom&#39;);
<a name="line19"></a>goog.require(&#39;goog.dom.TagName&#39;);
<a name="line20"></a>goog.require(&#39;goog.dom.TextRangeIterator&#39;);
<a name="line21"></a>goog.require(&#39;goog.iter.StopIteration&#39;);
<a name="line22"></a>goog.require(&#39;goog.testing.dom&#39;);
<a name="line23"></a>goog.require(&#39;goog.testing.jsunit&#39;);
<a name="line24"></a>
<a name="line25"></a>var test;
<a name="line26"></a>var test2;
<a name="line27"></a>
<a name="line28"></a>function setUpPage() {
<a name="line29"></a>  test = goog.dom.getElement(&#39;test&#39;);
<a name="line30"></a>  test2 = goog.dom.getElement(&#39;test2&#39;);
<a name="line31"></a>}
<a name="line32"></a>
<a name="line33"></a>function testBasic() {
<a name="line34"></a>  goog.testing.dom.assertNodesMatch(
<a name="line35"></a>      new goog.dom.TextRangeIterator(test, 0, test, 2),
<a name="line36"></a>      [&#39;#a1&#39;, &#39;T&#39;, &#39;#b1&#39;, &#39;e&#39;, &#39;#b1&#39;, &#39;xt&#39;, &#39;#a1&#39;, &#39;#span1&#39;,
<a name="line37"></a>        &#39;#span1&#39;, &#39;#p1&#39;]);
<a name="line38"></a>}
<a name="line39"></a>
<a name="line40"></a>function testAdjustStart() {
<a name="line41"></a>  var iterator = new goog.dom.TextRangeIterator(test, 0, test, 2);
<a name="line42"></a>  iterator.setStartNode(goog.dom.getElement(&#39;span1&#39;));
<a name="line43"></a>
<a name="line44"></a>  goog.testing.dom.assertNodesMatch(iterator,
<a name="line45"></a>      [&#39;#span1&#39;, &#39;#span1&#39;, &#39;#p1&#39;]);
<a name="line46"></a>}
<a name="line47"></a>
<a name="line48"></a>function testAdjustEnd() {
<a name="line49"></a>  var iterator = new goog.dom.TextRangeIterator(test, 0, test, 2);
<a name="line50"></a>  iterator.setEndNode(goog.dom.getElement(&#39;span1&#39;));
<a name="line51"></a>
<a name="line52"></a>  goog.testing.dom.assertNodesMatch(iterator,
<a name="line53"></a>      [&#39;#a1&#39;, &#39;T&#39;, &#39;#b1&#39;, &#39;e&#39;, &#39;#b1&#39;, &#39;xt&#39;, &#39;#a1&#39;, &#39;#span1&#39;]);
<a name="line54"></a>}
<a name="line55"></a>
<a name="line56"></a>function testOffsets() {
<a name="line57"></a>  var iterator = new goog.dom.TextRangeIterator(test2.firstChild, 1,
<a name="line58"></a>      test2.lastChild, 2);
<a name="line59"></a>
<a name="line60"></a>  // foo
<a name="line61"></a>  var node = iterator.next();
<a name="line62"></a>  assertEquals(&#39;Should have start offset at iteration step 1&#39;, 1,
<a name="line63"></a>      iterator.getStartTextOffset());
<a name="line64"></a>  assertEquals(&#39;Should not have end offset at iteration step 1&#39;,
<a name="line65"></a>      node.nodeValue.length, iterator.getEndTextOffset());
<a name="line66"></a>
<a name="line67"></a>  // &lt;br&gt;
<a name="line68"></a>  node = iterator.next();
<a name="line69"></a>  assertEquals(&#39;Should not have start offset at iteration step 2&#39;, -1,
<a name="line70"></a>      iterator.getStartTextOffset());
<a name="line71"></a>  assertEquals(&#39;Should not have end offset at iteration step 2&#39;, -1,
<a name="line72"></a>      iterator.getEndTextOffset());
<a name="line73"></a>
<a name="line74"></a>  // &lt;/br&gt;
<a name="line75"></a>  node = iterator.next();
<a name="line76"></a>  assertEquals(&#39;Should not have start offset at iteration step 3&#39;, -1,
<a name="line77"></a>      iterator.getStartTextOffset());
<a name="line78"></a>  assertEquals(&#39;Should not have end offset at iteration step 3&#39;, -1,
<a name="line79"></a>      iterator.getEndTextOffset());
<a name="line80"></a>
<a name="line81"></a>  // bar
<a name="line82"></a>  node = iterator.next();
<a name="line83"></a>  assertEquals(&#39;Should not have start offset at iteration step 4&#39;, 0,
<a name="line84"></a>      iterator.getStartTextOffset());
<a name="line85"></a>  assertEquals(&#39;Should have end offset at iteration step 4&#39;, 2,
<a name="line86"></a>      iterator.getEndTextOffset());
<a name="line87"></a>}
<a name="line88"></a>
<a name="line89"></a>function testSingleNodeOffsets() {
<a name="line90"></a>  var iterator = new goog.dom.TextRangeIterator(test2.firstChild, 1,
<a name="line91"></a>      test2.firstChild, 2);
<a name="line92"></a>
<a name="line93"></a>  iterator.next();
<a name="line94"></a>  assertEquals(&#39;Should have start offset&#39;, 1, iterator.getStartTextOffset());
<a name="line95"></a>  assertEquals(&#39;Should have end offset&#39;, 2, iterator.getEndTextOffset());
<a name="line96"></a>}
<a name="line97"></a>
<a name="line98"></a>function testEndNodeOffsetAtEnd() {
<a name="line99"></a>  var iterator = new goog.dom.TextRangeIterator(
<a name="line100"></a>      goog.dom.getElement(&#39;b1&#39;).firstChild, 0, goog.dom.getElement(&#39;b1&#39;), 1);
<a name="line101"></a>  goog.testing.dom.assertNodesMatch(iterator, [&#39;e&#39;, &#39;#b1&#39;]);
<a name="line102"></a>}
<a name="line103"></a>
<a name="line104"></a>function testSkipTagDoesNotSkipEnd() {
<a name="line105"></a>  // Iterate over &#39;Tex&#39;.
<a name="line106"></a>  var iterator = new goog.dom.TextRangeIterator(
<a name="line107"></a>      test.firstChild.firstChild, 0,
<a name="line108"></a>      test.firstChild.lastChild, 1);
<a name="line109"></a>
<a name="line110"></a>  var node = iterator.next();
<a name="line111"></a>  assertEquals(&#39;T&#39;, node.nodeValue);
<a name="line112"></a>
<a name="line113"></a>  node = iterator.next();
<a name="line114"></a>  assertEquals(goog.dom.TagName.B, node.tagName);
<a name="line115"></a>
<a name="line116"></a>  iterator.skipTag();
<a name="line117"></a>
<a name="line118"></a>  node = iterator.next();
<a name="line119"></a>  assertEquals(&#39;xt&#39;, node.nodeValue);
<a name="line120"></a>}
<a name="line121"></a>
<a name="line122"></a>function testSkipTagSkipsEnd() {
<a name="line123"></a>  // Iterate over &#39;Te&#39;.
<a name="line124"></a>  var iterator = new goog.dom.TextRangeIterator(
<a name="line125"></a>      test.firstChild.firstChild, 0,
<a name="line126"></a>      test.getElementsByTagName(goog.dom.TagName.B)[0].firstChild, 1);
<a name="line127"></a>
<a name="line128"></a>  var node = iterator.next();
<a name="line129"></a>  assertEquals(&#39;T&#39;, node.nodeValue);
<a name="line130"></a>
<a name="line131"></a>  node = iterator.next();
<a name="line132"></a>  assertEquals(goog.dom.TagName.B, node.tagName);
<a name="line133"></a>
<a name="line134"></a>  var ex = assertThrows(&#39;Should stop iteration when skipping B&#39;, function() {
<a name="line135"></a>    iterator.skipTag();
<a name="line136"></a>  });
<a name="line137"></a>  assertEquals(goog.iter.StopIteration, ex);
<a name="line138"></a>}
</pre>


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